Highlights of the Study include the following:
We take a trip back through memory lane to show how and why we ended with the existing family of 3GPP-based CIoT technologies and device categories, including Cat 0, Cat M1, EC-GSM and Cat M2 (aka “NB-IoT”).
The Traffic Profiles
The best way to understand what NB-IoT/EC-GSM can and cannot do is to understand the traffic profiles and use cases used by 3GPP during the standardization process.
Leveraging the traffic profiles and published performance analysis results, we show what the marketing claims of NB-IoT really mean, the inherent tradeoffs that exist, and why we believe capacity is (or at least should be) dead last in terms of operator requirements.
Getting from Here to There
We discuss the likely impacts to the RAN and CN, including the potential/likely role of network virtualization and the use of an “EPC-lite” network. Included in this discussion is an update on the status of the NB-IoT specification, including some of the outstanding issues that remain.
The Deployment Scenarios
We discuss the pros and cons of the 3 deployment scenarios, namely standalone/GSM refarming, guard band, and in-band.
Adding another "G"
Based on what NB-IoT can and cannot do, as well as the likely traffic profiles, we discuss the practicality of NB-IoT fulfilling the 5G use cases being discussed that pertain to uMTC and cMTC.
And in the other Corner
CIoT technologies are not the only option that exists. In addition to the non-3GPP wide area technologies there are also the local and personal area technologies that play a role, either in a complementary or competitive role. We discuss.
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2.0 CIoT History 101 - The Reader’s Digest Edition
3.0 IoT Objectives and Implementation Strategies
3.1 Cellular IoT Enabling Technologies
3.1.1 Lower Category Devices
3.1.3 Clean Slate
3.2.1 NB-IoT = NB-CIoT + NB-LTE
3.2.2 Performance Analysis
3.3 Core Network Implications
3.4 Complementary Technologies
4.0 Where It Is All Headed
4.1 Cat 0, Cat 1, and Cat M1
4.4 Next-Generation Network Technologies
5.0 Final Thoughts
List of Figures
Figure 1. Ratio of RF and Baseband Costs and RF-Related Costs for a Cat 1 Modem
Figure 2. Modem Cost Reductions Due to a 1.4 MHz Channel Bandwidth
Figure 3. Consolidated Cost and Performance Impacts of Various Optimization Strategies
List of Tables
Table 1. CIoT Traffic Type and Estimated Payload and Periodicity
Table 2. Estimated NB-IoT Throughput and Connections - per cell sector
Table 3. Estimated NB-IoT Battery Life with Various Traffic Profiles and RF Conditions
Table 4. Estimated Latency for Uplink Extension Reports
Table 5. Estimated Edge of Coverage NB-IoT Data Rates
Table 6. Estimated NB-IoT Capacity - number of NB-IoT devices per cell sector
Table 7. Ericsson Estimated NB-IoT Capacity - number of NB-IoT devices per cell sector